GB1603955A - Radio-frequency signal receivers - Google Patents

Radio-frequency signal receivers Download PDF

Info

Publication number
GB1603955A
GB1603955A GB22048/78A GB2204878A GB1603955A GB 1603955 A GB1603955 A GB 1603955A GB 22048/78 A GB22048/78 A GB 22048/78A GB 2204878 A GB2204878 A GB 2204878A GB 1603955 A GB1603955 A GB 1603955A
Authority
GB
United Kingdom
Prior art keywords
signal
frequency
value
receiver
responsive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB22048/78A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Research of Electronics Inc
Original Assignee
General Research of Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Research of Electronics Inc filed Critical General Research of Electronics Inc
Publication of GB1603955A publication Critical patent/GB1603955A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies

Landscapes

  • Noise Elimination (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
GB22048/78A 1977-05-27 1978-05-24 Radio-frequency signal receivers Expired GB1603955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/801,084 US4245348A (en) 1977-05-27 1977-05-27 Center frequency tuning system for radio-frequency signal receiver

Publications (1)

Publication Number Publication Date
GB1603955A true GB1603955A (en) 1981-12-02

Family

ID=25180157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22048/78A Expired GB1603955A (en) 1977-05-27 1978-05-24 Radio-frequency signal receivers

Country Status (9)

Country Link
US (1) US4245348A (xx)
JP (1) JPS53147422A (xx)
AU (1) AU527084B2 (xx)
CA (1) CA1118840A (xx)
DE (1) DE2823021C2 (xx)
GB (1) GB1603955A (xx)
HK (1) HK12584A (xx)
NL (1) NL7805667A (xx)
SE (1) SE427229B (xx)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843301Y2 (ja) * 1977-07-02 1983-09-30 ヤマハ株式会社 受信機における受信状態自動選択回路
JPS56110360A (en) * 1980-02-06 1981-09-01 Pioneer Electronic Corp Muting circuit of am stereo receiver
US4330866A (en) * 1980-04-24 1982-05-18 Rca Corporation Arrangement for selectively routing a signal indicative of received signal strength to different portions of a radio receiver in response to different levels of a control signal
JPS56174232U (xx) * 1980-05-26 1981-12-23
US4387469A (en) * 1980-06-03 1983-06-07 Clarion Co., Ltd. Tuner control system
SE458976B (sv) 1980-12-04 1989-05-22 Mitsubishi Electric Corp Flerstationsmottagare
US4410762A (en) * 1981-05-12 1983-10-18 Motorola, Inc. Dual mode tone detector circuit
JPS57196631A (en) * 1981-05-28 1982-12-02 Sanyo Electric Co Ltd Detecting circuit for pulse noise
US4504966A (en) * 1983-05-31 1985-03-12 Harris Corporation Stereo inhibitor for AM stereo receiver
US4580285A (en) * 1983-09-07 1986-04-01 Sprague Electric Company Scanning AM radio with discriminator-driven-scan-stop-circuit
US4947456A (en) * 1988-09-16 1990-08-07 Uniden America Corporation Scanning radio receiver
US5970399A (en) * 1995-11-22 1999-10-19 Telefonaktiebolaget Lm Ericsson Radio channel squelching systems
US6556683B1 (en) * 1999-01-07 2003-04-29 John E. Levreault Remote turn-on circuit for automobile audio amplifier
US7127010B1 (en) * 1999-07-29 2006-10-24 Bose Corporation Oscillator controlling
US8644418B2 (en) * 2010-10-14 2014-02-04 Creative Technology Ltd Transmitter and receiver modules for unidirectional communications and a method using the aforementioned
JP5691615B2 (ja) * 2011-02-21 2015-04-01 ソニー株式会社 信号処理装置、信号処理方法、および受信装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319169A (en) * 1963-11-27 1967-05-09 Bunker Ramo Radio receiving system including squelch means
US3492584A (en) * 1965-12-27 1970-01-27 Victor Company Of Japan Automatic tuning system utilizing sweep frequency means driven by d.c. control signals
DE1286587B (de) * 1967-08-26 1969-01-09 Grundig Emv Vorrichtung fuer eine kombinierte Abstimmanzeige und Stillabstimmung in einem Hochfrequenzempfaenger
US3543165A (en) * 1967-10-02 1970-11-24 Motorola Inc Transistor switch circuit responsive to change in direct current voltage
US3766483A (en) * 1971-06-29 1973-10-16 Gen Electric Signal seeking tuner control system
US3821651A (en) * 1972-11-02 1974-06-28 Masco Corp Scanning control circuit for use in signal seeking radio receiver
US3869674A (en) * 1972-12-26 1975-03-04 Dynaco Inc A.f.c. disabling circuitry
US3961261A (en) * 1974-03-14 1976-06-01 Tennelec, Inc. Crystalless scanning radio receiver
US4009440A (en) * 1974-09-06 1977-02-22 Sanyo Electric Co Radio receiver
US3947774A (en) * 1974-11-25 1976-03-30 General Motors Corporation Signal seeking stopping circuit receiver
JPS5162612A (ja) * 1974-11-28 1976-05-31 Sanyo Electric Co Jushinsochi
JPS5345252B2 (xx) * 1974-12-17 1978-12-05
JPS5826691B2 (ja) * 1975-08-28 1983-06-04 ソニー株式会社 センキヨクソウチ
US4123716A (en) * 1976-08-12 1978-10-31 The Magnavox Company Automatic frequency control for digital tuning systems

Also Published As

Publication number Publication date
SE427229B (sv) 1983-03-14
SE7806061L (sv) 1978-11-28
HK12584A (en) 1984-02-24
US4245348A (en) 1981-01-13
AU3640578A (en) 1979-11-29
CA1118840A (en) 1982-02-23
DE2823021C2 (de) 1983-12-08
DE2823021A1 (de) 1978-12-21
AU527084B2 (en) 1983-02-17
NL7805667A (nl) 1978-11-29
JPS53147422A (en) 1978-12-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19980523